Farrell has appeared in two movies, Possession (1987) and The Journey Home.

She guest starred in the Sisters episode "Dear Georgie" with Kirsten Dunst and the Bakersfield, P.D. episode "Last One Into the Water" with fellow DS9 guest stars Christopher Darga and Tom Towles. In 1994, she guest starred in the Models Inc. episode "Of Models and Men" with another DS9 guest star, Cindy Katz.